<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>box-shadow-2</title>
</head>
<body>
  <div>
    <img src="./img2.png" alt="图片">
  </div>
</body>
<style>
  * { 
    margin: 0;
  }

  img {
    height: 600px;
    box-shadow: 0 0 0 10px #2bdbbc,
                0 0 0 20px white,
                -40px -40px #fe8b88,
                40px 40px #fe8b88;
  }

  div {
    text-align: center;
    margin: 10vh;
  }
</style>
</html>